使用 WebSphere-8 / Spring 4 / Hibernate 4.3 进行 DAO 操作后的异常

Question

我的 WebSphere 8 驱动的 portlet 使用 Spring 4 和 Hibernate 4.3 over JPA。我有一个 JTA 数据源。这是我的设置：

persistence.xml

  <?xml version="1.0" encoding="UTF-8"?>
  <persistence xmlns="http://java.sun.com/xml/ns/persistence"
               xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.0"
               xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
  >
      <persistence-unit name="myUnit" transaction-type="JTA">
          <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
          <jta-data-source>jdbc/mydb</jta-data-source>
          <properties>
              <property name="hibernate.transaction.jta.platform" value="org.hibernate.engine.transaction.jta.platform.internal.WebSphereExtendedJtaPlatform" />
              <property name="hibernate.transaction.factory_class" value="org.hibernate.engine.transaction.internal.jta.CMTTransactionFactory" />
              <property name="hibernate.dialect" value="org.hibernate.dialect.DB2Dialect" />
          </properties>
      </persistence-unit>
  </persistence>

我的portlet.xml

<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="transactionManager" class="org.springframework.transaction.jta.WebSphereUowTransactionManager" />
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="persistenceUnitName" value="myUnit" />
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
            <property name="databasePlatform" value="org.hibernate.dialect.DB2Dialect" />
            <property name="showSql" value="true" />
        </bean>
    </property>
</bean>

当我的 DAO 方法被调用时，抛出异常：

00000090 RegisteredSyn E   WTRN0074E: Exception caught from before_completion synchronization operation: java.lang.IncompatibleClassChangeError
   at com.ibm.ws.uow.ComponentContextSynchronizationWrapper.beforeCompletion(ComponentContextSynchronizationWrapper.java:65)

和

(... servlet and portlet specific exceptions ...)
Caused by: org.springframework.transaction.TransactionSystemException: UOWManager transaction processing failed; nested exception is com.ibm.wsspi.uow.UOWException: javax.transaction.RollbackException
(...)
Caused by: java.lang.IncompatibleClassChangeError

这是我的 DAO 类：

  @Repository("myDao")
  @SuppressWarnings("unchecked")
  public class HibernateMyEntityDao implements MyEntityDao
  {
     @PersistenceContext(unitName = "myUnit")
     private EntityManager entityManager;

     public Session getSession()
     {
        return entityManager.unwrap(Session.class);
     }

     @Transactional
     public List<MyEntity> findActive()
     {
        Calendar date = Calendar.getInstance();
        Criteria crit = getSession().createCriteria(MyEntity.class);
        crit.setFirstResult(0);
        crit.setFetchSize(10);
        crit.add(Restrictions.le("start", date));
        crit.add(Restrictions.gt("end", date));
        return crit.list();
     }
  }

我在这里做错了什么？

Answer 1

IncompatibleClassChangeError 通常表示依赖版本不正确。你可以阅读更多关于它的信息here 和here。

很可能websphere 8、spring 4和hibernate 4.3的组合不兼容。我的猜测是休眠 4.3 和 websphere 8 不兼容。您是否尝试过使用稍旧版本的 spring 和 hibernate？